Log-Skew-Normality of Ocean Turbulence.
Log-Skew-Normality of Ocean Turbulence.
复制标题
海洋湍流的对数偏斜正态性。
DOI：
10.1103/physrevlett.126.224502
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发表时间：
2021
影响因子：
8.6
通讯作者：
Cael BB
中科院分区：
文献类型：
--
作者：
Cael BB
间歇性海洋湍流的统计数据是湍流的物理理解及其全球影响之间的关键联系。对数正态分布是湍流动能耗散率的标准但不完美的假设分布。我们认为，由于湍流通常是由多个变化源产生的，因此对数偏斜正态（LSN）分布更合适。我们表明 LSN 分布与观察结果非常一致。 LSN 分布的重尾对于陆地和地外类似系统中的湍流采样具有重要意义。
The statistics of intermittent ocean turbulence is the key link between physical understanding of turbulence and its global implications. The log-normal distribution is the standard but imperfect assumed distribution for the turbulent kinetic energy dissipation rate. We argue that as turbulence is often generated by multiple changing sources, a log-skew-normal (LSN) distribution is more appropriate. We show the LSN distribution agrees excellently and robustly with observations. The heavy tail of the LSN distribution has important implications for sampling of turbulence in terrestrial and extraterrestrial analogous systems.